SYSTEM AND METHOD FOR AUTONOMOUS SANDING

    公开(公告)号:US20240424638A1

    公开(公告)日:2024-12-26

    申请号:US18752391

    申请日:2024-06-24

    Inventor: Tanner Rowley

    Abstract: Methods and systems are described herein for surface treatment operations using an autonomous sander system (“system”). The system may include a drive system operatively coupled to a chassis, so that the drive system is able to propel the autonomous sander system across a workpiece. The system may include a processor coupled to the autonomous sander system and area-monitoring sensors so that the processor may direct the system to perform a sanding operation based on information gathered from the surrounding environment by the sensors. The system performs the sanding operation by obtaining a surface treatment command that includes a threshold condition; obtaining workpiece assessment data from the sensors based on the command; directing the system to execute the sanding operation; directing the drive system to propel the sander along a desired path; and terminating the operation if a threshold condition is met.

    HARD WAFER GRINDING METHOD
    4.
    发明申请

    公开(公告)号:US20230025120A1

    公开(公告)日:2023-01-26

    申请号:US17811969

    申请日:2022-07-12

    Abstract: A hard wafer grinding method includes a rough grinding step of forming a section along the diameter of a hard wafer into a centrally recessed shape by roughly grinding the hard wafer such that a central part of the hard wafer is thinner than a peripheral part of the hard wafer, a finish grinding step of expanding a ground area of the hard wafer from the peripheral part in an annular shape to the central part while dressing lower surfaces of finish grinding stones by the peripheral part of the hard wafer of the centrally recessed shape after the rough grinding, then setting the whole of a radius part of the hard wafer as the ground area, and further finish-grinding the hard wafer so as to obtain a predetermined thickness.

    Grinding apparatus
    5.
    发明授权

    公开(公告)号:US11524386B2

    公开(公告)日:2022-12-13

    申请号:US16829282

    申请日:2020-03-25

    Abstract: A grinding apparatus including a chuck table for holding a wafer, a grinding unit having a spindle for rotating a grinding wheel, an inclination adjusting unit for adjusting the inclination of the rotation axis of the chuck table with respect to the rotation axis of the spindle, a touch panel, and a control portion. The control portion is adapted to compare the information regarding the target sectional shape input into a target shape input field with the information regarding the present sectional shape input into a present shape input field and then control the inclination adjusting unit to change the inclination of the rotation axis of the chuck table so that the wafer is ground to obtain the target sectional shape of the wafer.

    Polishing method and polishing apparatus

    公开(公告)号:US10399203B2

    公开(公告)日:2019-09-03

    申请号:US15304829

    申请日:2015-04-10

    Abstract: The present invention relates to a polishing method and a polishing apparatus for polishing a substrate such as a wafer while measuring a film thickness based on optical information included in reflected light from the substrate. The polishing method includes preparing a plurality of spectrum groups each containing a plurality of reference spectra corresponding to different film thicknesses; directing light to a substrate and receiving reflected light from the substrate; producing, from the reflected light, a sampling spectrum for selecting a spectrum group; selecting a spectrum group containing a reference spectrum which is closest in shape to the sampling spectrum; producing a measurement spectrum for obtaining a film thickness while polishing the substrate; selecting, from the selected spectrum group, a reference spectrum which is closest in shape to the measurement spectrum that has been produced when the substrate is being polished; and obtaining a film thickness corresponding to the selected reference spectrum.

    High-precision sphere size measuring device and sphere polishing device

    公开(公告)号:US09962808B2

    公开(公告)日:2018-05-08

    申请号:US15554114

    申请日:2017-02-07

    CPC classification number: B24B49/02 B24B11/06

    Abstract: A sphere size measuring unit (15) measures respective diameters of an object sphere in the course of processing and a standard sphere made of the same material as that of the object sphere and furthermore having a target diameter of the object sphere. A size difference calculation unit (161) calculates a size difference between the diameter of the object sphere and the diameter of the standard sphere. A determination unit (162) compares the obtained size difference with a threshold value so as to determine whether or not the diameter of the object sphere reaches the target value.

    Lens edging system, edging size management device, edging size management method and method of manufacturing spectacle lens

    公开(公告)号:US09962803B2

    公开(公告)日:2018-05-08

    申请号:US14443482

    申请日:2013-11-01

    CPC classification number: B24B9/148 B24B49/02

    Abstract: A lens edging system includes: an edger configured to perform edging to a spectacle lens in accordance with three-dimensional edging locus data obtained from edging shape data by calculation; a three-dimensional circumferential length measurement device configured to measure a circumferential length of the spectacle lens edged by the edger; and an edging size management device configured to correct a calculation parameter used for calculating the edging locus data, based on a difference between a measured circumferential length obtained by a three-dimensional circumferential length measurement device, and a theoretical circumferential length obtained by calculation.

Patent Agency Ranking